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12v outlets / cig lighters not working

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20K views 1 reply 2 participants last post by  retg  
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#1 ·
I was stuck in the rain with a low tire. I used my 12v air compressor and at one point I had to reposition. Well the 12v plug that goes into the truck's 12v outlet got wet and well you guessed it... 12v outlets don't work anymore. Air compressor works fine in other vehicles and I can't get any 12v accessory to work via truck's outlets. Truck is 2008 Sierra SLE with 2 dash 12v outlets... neither work now. Logic tells me fuse but the aux, aux2, and fuse 53 under hood are all good. Is there another fuse I should test? Do some of the 12v outlets have fuses behind them or inline?

Dumb questions: Is AUX PWR to both 12v outlets or is AUX PWR to one and AUX PWR2 to the other? If AUX PWR is to both, where is AUX PWR2 outlet?

Info: 2008 Sierra 1500 SLE
Stock Photo of the outlets I have
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#2 ·
LTR fuse powers one I/P outlet.

AUX powers another I/P outlet and/or center console outlet (depends on model)

AUX 2 powers the console or center seat outlet (depends on model)

One thing appears to be in common, LTR powers one I/P outlet and AUX power at least another I/P outlet if equipped.

I would say if it was just one outlet not working and the fuse is good, the outlet might have been burnt. But you say all are not working....I would look at the ground, that is common with both I/P outlets.

Heck, faster to just post a schematic....
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